[PD] keep hole size when changing type
[PD] keep hole size when changing type

as mentioned in https://forum.freecadweb.org/viewtopic.php?f=13&t=47584&start=10#p433116
a typical use case is that one changes the hole type from e.g. ISO normal to ISO fine. The size should however be the same.

This PR enables this and also takes care for the thread class and cut type, see the attached screencast.

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master